/* Scroll progress line and back-to-top button. */

.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 1001;
  pointer-events: none;
}

.progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--cork);
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0;
  transition: opacity 400ms;
}

.progress__bar.is-active {
  opacity: 0.85;
}

.totop {
  position: fixed;
  right: clamp(1rem, 3vw, 2.25rem);
  bottom: clamp(1rem, 3vw, 2.25rem);
  z-index: 1002;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: rgba(30, 29, 26, 0.86);
  color: var(--limestone);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(0.75rem);
  transition: opacity 400ms var(--ease-out), transform 400ms var(--ease-out), visibility 0s 400ms, background-color 300ms;
}

.totop.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition: opacity 400ms var(--ease-out), transform 400ms var(--ease-out), visibility 0s, background-color 300ms;
}

.totop:hover {
  background: var(--cork-deep);
}

.totop__arrow {
  width: 0.55rem;
  height: 0.55rem;
  border-top: 1px solid currentColor;
  border-left: 1px solid currentColor;
  transform: translateY(0.15rem) rotate(45deg);
}

body.menu-open .totop {
  opacity: 0;
  visibility: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .totop,
  .progress__bar {
    transition: none;
  }
}